DISCLAIMER: I DON'T OWN 'THE THING' (ORIGINALS AND PREQUELS)
Hello my fellow readers. I like to point out that this is the first theory I'm posting about 'The Thing'. So all opinions are welcome and I'll be happy to hear on what you think.
Before I start, I like to make a little comparison.
In the beginning John Carpenter made a movie called "The Thing" in 1982. Then 29 years later, came the prequel that explained everything on how it started. It was direct by Matthijs van Heijningen Jr. and written by Eric Heisserer. But what you may or may not know is that before the prequel and John Carpenter, came a 1951 (which is the actual original one) version called "The Thing From Another World". It was directed by Christian Nyby and Howard Hawks.
Here are the similarities and differences on all 3 films:
Similarities:
1) A base in Antartica
2) Sled dogs
3) Snow storms
4) Military and scientists
5) Thing creatures
6) Buried and destroyed UFOs
7) Frozen alien
Differences:
1) In the 1951 and prequel version, they both have women (not John Carpenter's film)
2) No dogs were imitated in the 1951 version
3) There were 3 different sizes for each UFO
4) In John Carpenter and the prequel, they both killed their 'thing' monster with fire while the original killed theirs with electricity (kinda like a reverse Frankenstein)
5) In the prequel, two thing imitations attack during daylight
6) In the prequel, the thing can only imitate organic beings. It also doesn't imitate metal
7) In both John Carpenter and the prequel, they both attempt to do a blood serum test and it gets destroyed